as completing a mail dispatch manifest or preparing
money order reports. This will be discussed later in
this training manual.
The most common type of calculator found in
military post offices is the electronic solid-state
machine (see figure 3-14).
The same general
principles apply for all operating calculators; however,
keyboard arrangements vary slightly depending on the
manufacturer and model. You will have to learn the
details of your machine from an experienced operator
or by studying the manufacturers instruction booklet.
All calculators are precision instruments and must
be protected from bumps and jars that will upset the
delicate balance of their mechanism. As with other
office machines, dust and dirt are big enemies. Keep
your calculator clean and covered when not in use. If
the machine is not operating properly, immediately
Figure 3-12.Beam scale.
Figure 3-13.100-pound beam scale.
Figure 3-14. Example of an electronic calculator used at most